TDK A33 Portable Bluetooth Speaker
Hi, long time reader, first time poster here in the audio section of this forum.
Have my TDK A33 Portable Bluetooth speaker here with two burst transistors (or whatever they are) in parallel that I failed to clarify what type of. They are placed right after the power on-off switch line located as Q206 and Q207 and coded as DHUF, and as seen in the pictures I m guessing that up right pin comes from a circuit that lets device know when its working with ac and when with battery.
Speaker currently works well with AC adapter but as soon as you unplug the adapter it shuts itself down in couple of seconds even with full battery.
This unit, when portable powered by 6 Ni-Mh rechargeable batteries in series.
Any schematics or help about clarifying the components will be highly appreciated.
Have my TDK A33 Portable Bluetooth speaker here with two burst transistors (or whatever they are) in parallel that I failed to clarify what type of. They are placed right after the power on-off switch line located as Q206 and Q207 and coded as DHUF, and as seen in the pictures I m guessing that up right pin comes from a circuit that lets device know when its working with ac and when with battery.
Speaker currently works well with AC adapter but as soon as you unplug the adapter it shuts itself down in couple of seconds even with full battery.
This unit, when portable powered by 6 Ni-Mh rechargeable batteries in series.
Any schematics or help about clarifying the components will be highly appreciated.
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